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Originally posted by catinabox on 24 Aug 2024, 16:21.
Last edited by Bunuel on 10 Apr 2025, 04:40, edited 1 time in total.
Edited the question.
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Dropdown 1: Company C
Dropdown 2: +$10
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Difficulty:
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Question Stats:
73%
(02:07)
correct 27%
(02:23)
wrong
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A day trader bought 50 shares of one of the companies shown in the graph, at the stock prices (in dollars) indicated in the graph above. He purchased the shares at 9:00, when the market opened, and sold all 50 shares at 13:00.
Select from each drop-down menu the option that creates the most accurate statement, given the information provided.
If the trader made a total profit of $250 on that day, he bought shares of , which at the market close at 16:00 had an overall price change of approximately .
A day trader bought 50 shares of one of the companies shown in the graph, at the stock prices (in dollars) indicated in the graph above. He purchased the shares at 9:00, when the market opened, and sold all 50 shares at 13:00.
Select from each drop-down menu the option that creates the most accurate statement, given the information provided.
If the trader made a total profit of $250 on that day, he bought shares of , which at the market close at 16:00 had an overall price change of approximately .
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Drop-down 1:
We are told that the day trader made a total profit of $250 from trading 50 shares of a particular company.
Since profit = (selling price – buying price) × number of shares, the stock price must have increased by $250 ÷ 50 = $5 between 9:00 and 13:00.
We need to identify the company whose stock price increased by $5 during that time period. Note that the graph shows stock prices beyond 13:00, but only the price change from 9:00 to 13:00 is relevant to the trader’s profit.
From 9:00 to 13:00, the following price changes occurred. We should check all companies to be certain. No calculator is needed — we can quickly note the differences and identify which company had a price increase of $5.
Company A: 55 → 65, a change of +10
Company B: 20 → 30, a change of +10
Company C: 105 → 110, a change of +5 — Correct
Company D: 65 → 50, a change of –15
Drop-down 2:
At the market close at 16:00, Company C had an overall price change of +$10, from $105 to $115.
I see the 13:00 and 16:00 - is that on purpose to make it trickier? I assume so. Should it say "must have purchased" instead of "most likely"?
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Yes, the timings are different to make sure you read the question correctly and not jump to conclusions!
The reason I say 'most likely' is because the value of $250 is approximate. Test takers are expected to eye ball the values so in reality there could be a slight variation in the total profit of $250. However, that variation is small enough that no other option comes close.
Originally posted by catinabox on 29 Aug 2024, 07:15.
Last edited by Bunuel on 10 Apr 2025, 04:41, edited 4 times in total.
Explanation Update
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We've been told that the day trader makes a profit of $250 after trading 50 stocks of a particular company. This means that the stock he bought had a change of 250/50 = $5 from 9 AM to 13:00. So we are looking for a stock that had gone up by $5 in that time frame. Note that the chart goes beyond 13:00.
In this time from 9 to 13:00 the following price changes occurred. Note that we should check all of them to be safe. You do not need a calculator but can quickly note the differences and which one will be equal to 5.
Company A goes 55 -> 65, i.e. a change of +10 Company B goes 20 -> 30, i.e a change of +10 Company C goes 105 -> 110. i.e. a Change of +5 CORRECT Company D goes 65 -> 50, i.e a change of -15
The Answer is Company C.
In the second part, we've been asked how much the stock has changed by closing time at 16:00. This is a trap in case you look at 13:00 instead of 16:00. Therefore, at 16:00, Stock C is at $115, i.e. the change is 115-105 = +$10.